A) Offensive language = offensive = bad
Scuba Kid, keeping the above (complicated, only someone as smart as me can figure it out) equation in mind, it sounds like people swear when they are happy and mad, so they are just trying to offend people all the time. That makes a ton of sense.
Offensive language doesn't offend me as much as most people would hope it does, but the intent being the words is what is offensive.